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Definitions and explanations of key terms related to the anatomy of the circulatory system, including arteries, capillaries, veins, the myocardium, endocardium, pericardium, superior vena cava, right atrium, tricuspid valve, right ventricle, pulmonary artery, pulmonary veins, left atrium, bicuspid valve, left ventricle, aortic valve, and aorta. It also covers coronary circulation.
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Arteries are blood vessels that carry blood away from the heart. TERM 2
DEFINITION 2 Capillaries are the smallest of a body's blood vessels and are part of the micro circulation. TERM 3
DEFINITION 3 In the circulatory system, veins (from the Latin vena) are blood vessels that carry blood towards the heart. TERM 4
DEFINITION 4 Cardiac muscle is a type of involuntary striated muscle found in the walls of the heart, specifically the. TERM 5
DEFINITION 5 The endocardium is the innermost layer of tissue that lines the chambers of the heart.
The pericardium (from the Greek - /perikardion/) is a double- walled sac that contains the heart and the roots of the great vessels. TERM 7
DEFINITION 7 The superior vena cava(also known as the Precava) is a large diameter, yet short vein that carries deoxygenated blood from the upper half of the body to the heart's right atrium. TERM 8
DEFINITION 8 The right atrium (in older texts termed the "right auricle") is one of four chambers (two atria and two ventricles) in the human heart. TERM 9
DEFINITION 9 The tricuspid valve (also known as the right atrioventricular valve) is on the right side of the heart, between the right atrium and the right ventricle. TERM 10
DEFINITION 10 The right ventricle is one of four chambers (two atria and two ventricles) in the human heart.
The aortic valve is one of the valves of the heart. TERM 17
DEFINITION 17 The aorta (; from Greek - - aort, from - - aeir "I lift, raise") is the largest artery in the body, originating from the left ventricle of the heart and extends down to the abdomen, where it branches off into two smaller arteries (the common iliacs). TERM 18
DEFINITION 18 Coronary circulation is the circulation of blood in the blood vessels of the heart muscle.